Rotary valve for gas engines



June 9, 1925.

A. J. KRAUSE ROTARY VALVE FOR GAS ENGINES Filed Aug. 19- 1924 2 Sheets-Sheet 1 WITNESS INVENTOR fir/7910"! 162111.96;

ATTORNEYS v June 9, 1925.

A. J. KRAUSE ROTARY VALVE FOR GAS ENGINES Filed Aug. 19. 1924 ZSheets-Sheet 2 Mm u MR d 0, wr n 1% A J. WW "m A lit) tion neverthelessit is to bennderstood that a Patented June 9,1925.

* UNITED? STATES PATENVTT OFF-ICE.

TROTARY vALVE n03 ens ENGINE-S.

Application filed August 19, 1924. Serial No. 732,999.

To all whom it may concern." I v Be it known that I, ARTHUR Josnrn Kimusn, a citizen of the United States, and a resident of Cleveland, in the county of Cuyahoga and State of Ohio have invented certain new and useful Improvements in Rotary Valves fdrGas Engines, of which the following; is a specification.

This invention relatesto rotaryjvalves and member havinga tortuous path for the comlmst ibleniixture whereby said mixture will come in contact'with the heated walls otexhaust passages for-thoroughly vaporizinga'll condensedparticles of the niiiitnre which is supplied to the engine. 2

provision of the rotary valve having pa's sages for the intake of the mixture and pas.-

sagcs for. the exhaust of the burnt gases and V p 7 p point. The inner end. of the exhaust pipe 7 individual water jackets interposed between individiull ball bearings for rotatably sup porting the valve; I w

A further object of the invention is the provision of a rotary valve which may be readily applied to an internal combustion engine or removed withlittle or no effort.

This invention will be bestfunderstood from a consideration of the following detailed description, inview of theaccom iianying drawing for n'inga part of the specifica the invention is notconfin'e'd to the disclosure, being susceptlb'le of such changes and modifications which shallfde tine no material departure from the salient features Off the invention as expressed in the appended claims. r

In the drawings: a Figure 1 is a longitudinal vertical section of a rotary valveconstructed according to my invention. I

Figure 2 is a'plan view ofthe rotarymlve construction. y I H Figure 3 is avei'tical. transverse section taken along thelinev3 3 of Figure 2. I H Referring more particularly to the drawings, 1 designates a cylinderblockof an in 'ternal combustion engine including a pluralit'y of cylinders which have exhaust ports 2 relating, to the rotary valve about tobe dc scribed, and intake ports 3 connecting said valve with the cylinder.

The valve is cylindricalin shape and conipri ses' an outer cylindrical or gin-g4 adapted to'rotate in roller bearings '5' carried by the has for-its object the provision of a rotatabletake pipe 13.

7X furtherobject of the invention is the cylinder block 1 The cylindrical casing is closed at its end by a circular inem'bei 6 which has a central opening. Atthe -periphery er the opening is located a centrally disposed exhaust pipe 7. The exhaust pipe is formed integrally with the cylindrical member 4, the end member 6 and the inner end member 8. The inner extreme end of the cylinder 4: has an extension forming a chamber 9 which is closed by an end member 10. This end member has an integrally formed reduced extension ll forming a por tion of the intake conduit which is revolubly mounted within the circular end 12 of an in- This intake "pipe is connected with a carburetor 14 for supplying 'the'usual combustible mixture to the engine.

The cylindrical conduit 11 is provided with annular grooves to receive the packing rings 15 which prevent the loss of fluid at this 17. The portion of the chamber'within the V cylindrical casing 4 that is shown at 21 and which is concentric with the member 17 and the member '7 is adapted to re'ceiye coinbustible mixture issuing from the outer end 18 of the tubular member 17. r

The concentric space 21 of the casing 4 is in communication, through the passage 22, with an intake port 3 of the engine. This passage or nipple 22' is received within a nipple 23 alinin'g with the intake port 3, with the nipple 22 being formed integrally with a circular casting 24: forming an individual water jacket which is spaced alternate-1y with the ball bearings 5. The pas .sage 2'2 does not communicate with the water chamber within the casting 24 but is formed -1.in-ough the same and independent of the water jacket. p p

A nipple 25 which is formed integrally tl'n'ough the casting 26 forms another indiidiiitl water jacket which is provided with a passage in comnn' nication withthe exhaust port 2, with the passage in'tlie nipple extending entirely through the casting of thewa't er jacket 26 and out of communication with the same, the passage in the nip ple being in communication with a passa e 27 which communicates with the exhaust pipe 7 located centrally of the casing at.

The alternately disposed water jackets 24 and 26 are connected with an inlet pipe 29 and an outlet pipe 30 at a point on the oppositeside of the water jacket and at a point higher than the inlet. A valve 31 controls the inflow of the cooling medium.

Rigidly connected with the tubular member 11 is a yoke 32 which is rigidly connected with the inner wall of the tubular member 11 and a counter shaft 33. This counter shaft is operated through a sprocket 34 and a chain 35, the chain being entrained over a sprocket which is operatively connected with some moving part of the engine.

When the engine is operating the comlnistible mixture is drawn through an intake pipe 13 from the carlmreter through the passage 11 and into the chamber 9. From the chamber 9 it passes through the tubular member 17, around the exhaust conduit 7 with the combustible mixture when entering the chamber 9 striking the hot end 37 of the exhaust passage 7 and being spread outwardly enters the conduit 17 and issues at the outer end 18 whence it enters the chamber 21 and through either of the passages 22 to the intake ports 3 whenever the port 38 in the wall of the rotary valve registers with passage 22. The exhaust gases pass through one of the passages 25, through the passage 27 into the centrally located exhaust conduit 7 and the gases are exhausted whenever the passage 27 registers with an exhaust port 2 in the engine cylinder.

As shown in Figures 1 and 3, the passages 38 are lined with sleeves i2 which carry packing strips for engaging the walls of the passage. The outer ends of the sleeves are flanged to engage over the ports, the flanged ends 48 being located between the inner wall of the individual water jackets and the outer wall of the valve casing adjacent the ports. It will be noted that the passages 27 are also lined with sleeves 27 which also are flanged at their outer ends as shown at 48 to engage around the metal of the casing at the ports tor locking the sleeves against inward movement.

The outer end of the cylindrical casing it is received within a circular member which is isolated from the chamber 19 of said outer casing but in open COH'llIlUHlCHiJiOIl with the exhaust conduit 7 arranged centrally of the outer casing so that the exhaust gases are discharged directly into the member 45 and thence to a muiiler or to the atmosphere. The outer wall adjacent the outer end of the cylindrical casing at is provided with grooves in which packing rings 46 are mounted for sealing the connection between the cylinder 4 and the member 45 and where the said end of the cylinder revolves in the member 45,

It will be noted that the area. of the hearing surface of the outer wall of the cylinder 4 is limited due to the fact that ind.i vidual roller bearings 5 are located between the various water ackets 24:, and 26 and the water jackets themselves, while limited with respect to the bearing surface which engages the cylinder at, are sufiiciently extensive to cool the cylinder and maintain the valve at a proper tel'nperature for rotation in its bcarings.

What I claim is:

1. In an internal combustion engine, a rotary valve comprising a cylindrical casing provided with internally arranged exhaust and intake conduits, intake and exhaust ports, and passages connecting the intake ports and exhaust ports respectively with the intake and exhaust conduits, individual water jackets mounted on the cylindricalvalve casing and provided with radial passages therethrough isolated from the water jackets, the passages in certain of the water jackets adapted to aline periodically with the intake ports of the valve, the passages in the other jackets adapted to periodically aline with the exhaust ports of the valve.

2. In an internal combustion engine, a ro tary valve comprising a cylindrical casing provided with internally arranged exhaust and intake conduits, intake and exhaust ports, and passages connecting the intake ports and exhaust ports respectively with the intake and exhaust conduits, circular individual water jackets embracing the cylin drical. valve casing and provided with passages therethrough isolated from the water jackets, the passage in certain oi. the water jackets adapted to aline periodically with the intake ports of the valve, the passages in the other jackets adapted to periodically alinc with the exhaust ports of the valve.

3. In an internal combustion engine, a rotary valve comprising a cylindrical casing provided with internally arranged exhaust and intake conduits, intake and exhaust ports, and passages connecting the intake ports and exhaust ports respectively with the intake and exhaust conduits, circular individual water jackets embracing the cylindrical valve casing and provided with passages therethrough isolated from the water jackets, the passages in certain of the water jackets adapted to aline periodically with the intake portsof the valve, the passages in the other jackets adapted to periodically aline with the exhaust ports of the valve, said waterjackets being spaced from each other, and ball bearings located between the water ackets and supporting the cylindrical casing.

4. In an internal combustion engine, a rotary valve comprising a cylindrical casing having its opposite ends closed, a tubular member centrally disposed in the casing forming an exhaust conduit, one end of said of the cylindrical casing, the other end of the cylindrical casing being provided with an opening for the admission of a combustible mixture, a second tubular member receiving the first tubular member and located concentrically within the cylindrical casing. one end of the second tubular memher being spaced from the end of the casing provided with the intake opening and provided with an annular flange connecting said end to the inner side walls of the cylindrical casing, the other end ofthe said tubular member terminating short of the adjacent closed end of the cylindrical casing, said cylindrical casing being provided with ports, conduits connecting certain of the ports with the centrally disposed exhaust conduit, the other ports being connected directly with the space between the cylindrical casing and the second tubular member.

In an internal combustion engine, a rotary valve comprising a cylindrical casing having its opposite ends closed, a tubular member centrally disposed in the casing forming an exhaust conduit, one end of said conduit being closed, the other end being open and extended through the closed end of the cylindrical casing, the other end of the cylindrical casing being provided with an opening for the admission of a combustible mixture, a second. tubular member receiving the first tubular member and located concentrically withim the cylindrical casing, one end of the second tubular member being spaced from the end of the casing provided with the intake opening and provided with an annular flange connecting said end to the inner side walls of the cylindrical casing, the other end of the said tubular member terminating short of the adjacent closed end ot the cylindrical casing, said cylindrical casing being provided with ports, conduits connecting certain of the ports with the centrally disposed exhaust conduit, the other ports being connected directly with the space between the cylindrical casing'and the second tubular member, the end of the cylindrical casing at the intake opening for the combustible mixture being provided with a tubular bearing member. and

,means engaged with said last mentioned and intake conduits, intake and exhaust ports and passages connecting the intak ports and exhaust ports respectively with the intake and exhaust conduits, individual water jackets mounted on the cylindrical valve casing and provided with radial passages therethrough isolated from the water jacket, the passages in certain of the water jackets adapted to aline periodically with the intake ports of the valve, the passages in the other jackets adapted to periodically aline with the exhaust ports of the valve, and sleeves lining the passages to the intake and exhaust conduits and provided with a lateral flange embracing the exhaust and intake ports to prevent inward movement of said sleeves and for sealing the passages against the loss of fluid at these points.

ARTHUR JO SEPH KR AUSE. 

